M10/s14 engine

[bmw_m_320i]

I am currently deciding on what type of turbo setup I want on my M10 engine.. I have already decided I want to run a High CR like 12:1 or so, with a s14 head, Megasquirt N'EDIS computer, some type of high Octane (110-140) or Methanol/alcohol. I'm looking for power output in the 650hp+ range. I plan on boring out to 2.5L to get a N/A power of about 250-260hp. Now my question is for the Flow requirements I have for this much output, would like a T-88 be too big, if I want the capabilty to run 30psi or higher? I know that High Boost and High CR dont usually work b/c of Detonation problems, But I've seen it done a race cars with outputs of upto 1280hp. I know that they have special race fuels, which I plan on using. And I'm going have Water/methanol injection, Intervcooler, and the other precautions. I dont expect to get the 1280, but I would like at least half that, and maybe the capabilty to achieve higher number by adjusting boost presures.

[krayziekujo]

why don't u NOT waste your money on that car?

[bmw_m_320i]

just to surprise people like you

[CaM_ae86]

y not?

grandma looking car perhaps runnin huge horsepower

hell yeah

*dribble*

[bmw_m_320i]

I think the e21 chassis is a beautiful car bridging the gap between old and modern BMW designs. Its one of my favorite designs.

[Eric]

there is no way you can run 12:1 cr and 30psi unless you have the bank acount of BMA AG. and if you did, you wouldn't be spending that money on a 20 year old car. (no knocking your E21, that's just a fact)

I know guys with turbo S14's running 500hp, but 650 out of a M10 seams like a streatch. I also don't think you can punch a M10 out to 2.5L.

[943184dr]

the largest i have heard of a m10 getting to is 2.4L and there are a couple sweeds getting m10's to put out 750hp+ at the wheels. i'll post a link as soon as i can find it of a guy that has one putting down currently 578 with plans of getting 700+.

Tom

[943184dr]

http://www2.lauparacing.com/ This one is getting aobut 750hp last i heard.

http://koti.mbnet.fi/mikkiz/index2.htm This guy last time i talked to him had 578 before the tires slipped so now he's tubbing it to do even more. His name is Jani, really nice guy.

Tom

[OldSkoolBmw]

2.4L's on a m10 block is done with a evo3 s14 crank and a 92mm bore block. It will take probably about 3-5 blocks to get one that will bore to 92mm . You end up with really thin walls.. it's only .120 oversize... you might as well just do an S14 block if your gonna get the head.. it just doesn't bolt right upto a m10 block... gotta drill oil passages and such.. That 1280BHP 1.5L forumla 1 engine had nothing to with a m10 or a s14. It also only lasted 3 hours before being worn out.. Most of what they ran on that engine for fuel was 85% tolurene, 12% alcohol and 3% lubricants. Sure go try and purchase a 55 gallon drum of tolurene.. The real question is what tranny is going to bolt to the back of it.. you certainly don't think your 265 getrag is gonna handle 600HP.. nor is that 3.90LSD rear.. those things break ring and pinions at 300HP

[bmw_m_320i]

isnt the s14 block and m10 block the same?

[943184dr]

nope, the s14 block has thicker cylinder walls making it capable of a larger bore.

Tom

[bmw_m_320i]

oh ok

[OldSkoolBmw]

Originally posted by bmw_m_320i
isnt the s14 block and m10 block the same?

Not only are the cylinder walls thicker to accodate the larger S14 bore but the block has special structure ribs designed into the outer wall that the m10 didn't get till the 318i of the 80s.. and the s14 has a taller deck height. Honestly they're not even close.. the reason people put s14 heads on 02s is to get around class rules like "Must have stock production block, head and cams are unlimited" Best of luck on your 600HP monster engine.. still waiting on that tranny rear end thing...

[Villanuevas_BMW]

First of all I want to say that putting an S14 head on an M10 block is too much of a hastle. People who have done it said that it was a mistake and would have rather just did the entire swap. I have even asked this question on these forums. Stop and think, an S14 has no ditributor, an M10 does. Also how will the cams turn? M10 has one cam S14 has two. However The M10, and S14 do have the same tranny bolt pattern but little fabrication has to be done for because the S14 has a sensor for TDC and for the tach. This will help.
HELP! Calling All S14 experts, E30 M3 Engine
Also call Ireland Enginneering. But im sure they will just tell you to just buy the entire swap as well

[bmw_m_320i]

Thanks for the input, I was under the impression that the m10 and s14 block were the same. I'm going to swap out the whole engine instead. and as for the tranny and differential, not sure on what to run yet